Oxidation behavior of nickel--chromium--aluminum--yttrium -- magnesium oxide and nickel--chromium--aluminum--yttrium -- zirconate type of cermets

Technical Report · Wed Dec 01 00:00:00 EST 1976

OSTI ID:7320020

Zaplatynsky, I

The 1100 and 1200 C cyclic oxidation resistance of dense Ni-Cr-Al-Y - MgO, Ni-Cr-Al-Y - CaZrO/sub 3/, Ni-Cr-Al-Y - SrZrO/sub 3/, Ni-Cr-Al-Y - MgZrO/sub 3/ cermets and a 70 percent dense Ni-Cr-Al-Y developmental material was determined. The cermets contained 60 and 50 volume percent of Ni-Cr-Al-Y which formed a matrix with the oxide particles imbedded in it. The cermets containing MgO were superior to cermets based on zirconates and to the porous Ni-Cr-Al-Y material. Cyclic oxidation tests of four cermet systems are reported; variables include simple oxide content, element content, oxidation temperature, specific weight change, number of cycles, and X-ray diffraction pattern intensities: 2 figures and 3 tables include numeric data.

• Research Organization: National Aeronautics and Space Administration, Cleveland, OH (USA). Lewis Research Center
• OSTI ID: 7320020
• Report Number(s): N-77-16115; NASA-TM-X-3466; E-8834; TRN: 77-015255
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
OXIDATION
CALCIUM COMPOUNDS
CHROMIUM ALLOYS
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
NICKEL ALLOYS
STRONTIUM COMPOUNDS
YTTRIUM ALLOYS
ZIRCONATES
CHEMICAL COMPOSITION
HEAT RESISTING ALLOYS
MICROSTRUCTURE
QUATERNARY ALLOY SYSTEMS
VERY HIGH TEMPERATURE
ALKALINE EARTH METAL COMPOUNDS
ALLOY SYSTEMS
ALLOYS
CHALCOGENIDES
CHEMICAL REACTIONS
CRYSTAL STRUCTURE
HEAT RESISTANT MATERIALS
MATERIALS
OXIDES
OXYGEN COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
360205* - Ceramics
Cermets
& Refractories- Corrosion & Erosion